JP2003191359A - Honeycomb structure, its production method, connection body of honeycomb structures - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a honeycomb structure formed by arranging a plurality of honeycomb cells by using cell walls of prepregs in which fibers are impregnated with a thermosetting resin and heat-curing the honeycomb cells, and also to provide a method for producing the honeycomb structure, and a connection body of the honeycomb structures. <P>SOLUTION: A plurality of the honeycomb cells 1 are arranged by using a cell wall material 1a comprising the prepreg in which the fibers are impregnated with the thermosetting resin and heat-cured. Alternatively, outer wall prepregs 3 of the prepregs are heat-cured, a filler 5 is packed in the honeycomb cells 1 to form solid structure, and a reinforcing material is packed in non- steady type cells 4 formed inside of the outer wall cells 3. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a honeycomb cell structure in which a plurality of honeycomb cells are arranged by utilizing a cell wall made of a prepreg in which a fibrous material is impregnated with a thermosetting resin, and heat-cured, and a manufacturing method thereof. It also relates to a connected body of honeycomb structures.

[0002]

2. Description of the Related Art Hitherto, a structural material composed of honeycomb cells has been widely adopted as a lightweight and highly rigid structural material in the fields of construction and aircraft. The structure is generally a so-called sandwich structure in which a plate-shaped honeycomb structure material is sandwiched between plate materials and the like.

[0003]

Conventionally, the honeycomb structure material has been manufactured by the method described below. FIG. 14 is an explanatory view showing an outline of a method for manufacturing a honeycomb structure material according to a conventional technique. That is, as shown in FIG. 14A, first, thin plate-like wall members 50 bent at regular intervals so as to project in zigzag are laminated and adhered to each other. At this time, an adhesive 51 is provided in advance on the portion that contacts the adjacent wall material 50. The adhesive application width 52 is set to be substantially the same as the zigzag top width 53.

When the adhesive 51 is sufficiently cured and the bonding process is completed, the uppermost wall material 50 and the lowermost wall material 50 are mechanically pulled in the directions of arrows A and B, respectively. Then, as shown in FIGS. 14 (B) and 14 (C), the wall material 40 integrally formed by stacking is deformed, and the honeycomb cells 54 are shaped. Through the above steps, the honeycomb structure material 45 is completed. Note that FIG. 14C is a plan view of the honeycomb structure material shown in FIG. 13B.

However, as described above, in the method of mechanically pulling and deforming the wall material 50, it is a physical point of view to increase the length 56 of the honeycomb structure material shown in FIG. 14C. Can be said to be difficult. This is because a considerable traction force is required to form such a long honeycomb structure, and the traction machine needs to be much larger than the conventional one. Even if the above-mentioned traction machine is used, the end portion of the honeycomb cell is destroyed and the honeycomb cell cannot be manufactured. Therefore, it cannot be practically adopted.

In order to solve the above-mentioned drawbacks of the prior art, the inventor of the present invention has a honeycomb cell structure which can be formed at a considerably longer length and at a lower cost than a conventional honeycomb structure material, and its manufacture. A method is disclosed in JP 2001-287A.
No. 290. The present invention relates to this technology,
An object of the present invention is to provide a honeycomb structure, a method for manufacturing the same, and a connected body of honeycomb structures.

[0007]

The present inventor has developed a honeycomb structure composed of an aggregate in which cell walls of long honeycomb cells are adhered to each other, and as described above, JP-A 2001-2
This structure was disclosed in 87290. This structure has longer honeycomb cells than conventional honeycomb materials,
It has excellent features such as light weight, high strength, and low manufacturing cost.

The present invention relates to a honeycomb cell structure in which the above-mentioned honeycomb structure developed by the present inventor is further developed and developed, a method for manufacturing the same, and a honeycomb structure connected body.

The honeycomb structure of the present invention is a honeycomb structure obtained by arranging a plurality of honeycomb cells by using a cell wall material made of a prepreg obtained by impregnating a fibrous material with a thermosetting resin, followed by heat curing. While filling the inside of the cell with a filler to form a solid structure, a reinforcing material for the purpose of increasing the bonding area between the outer wall prepreg and the inner honeycomb cell in the atypical cell portion formed inside the outer wall prepreg. It is characterized by being filled. And
The reinforcing material is preferably a rod-shaped material.

The honeycomb structure of the present invention is a honeycomb structure obtained by arranging a plurality of honeycomb cells by using a cell wall material made of a prepreg in which a fibrous material is impregnated with a thermosetting resin and heat-curing. In addition, the inside of the cell is filled with a filling material to form a solid structure, and a fitting for a fastening metal fitting for the purpose of coupling with another member is integrally provided. Further, it is preferable that the fixture of the fastening fitting with the other member is a pipe-shaped embedded nut having an internal thread engraved on the inner surface.

The honeycomb structure of the present invention is a honeycomb structure in which a plurality of honeycomb cells are arranged and heat-cured by using a cell wall material made of a prepreg in which a fibrous material is impregnated with a thermosetting resin. Then, a filling material is packed inside the cell to form a solid structure, a through hole is formed, and a fastening jig is attached. It is preferable that a pipe-shaped reinforcing material is fitted in the through hole.

The honeycomb structure of the present invention is a honeycomb structure in which a plurality of honeycomb cells are arranged and heat-cured by using a cell wall material made of a prepreg in which a fibrous material is impregnated with a thermosetting resin. The inside of the cell is filled with a filling material to form a solid structure, and a fastener for the purpose of coupling with other members is physically bonded and fixed to the outer surface of the outer wall prepreg during heat generation. is there. Further, it is preferable that the fastener includes a joint surface portion and a flange portion that are joined and fixed to the outer surface of the outer wall prepreg.

The honeycomb structure of the present invention is a honeycomb structure obtained by arranging a plurality of honeycomb cells by using a cell wall material made of a prepreg in which a fibrous material is impregnated with a thermosetting resin, and heat-cured. The inside of the cell is filled with a filling material to form a solid structure, and a reference member, which serves as a reference surface when processing the honeycomb cell structure, is bonded to the outer surface of the outer wall prepreg by heat generation. It will be done. The filler is preferably steel, glass, foaming urethane, or non-foaming urethane.

In the method for manufacturing a honeycomb structure of the present invention, the cell walls of a plurality of honeycomb cells in which a fibrous material is impregnated with a thermosetting resin are closely arranged to form an aggregate of honeycomb cells, In the aggregate of honeycomb cells, a step of forming a honeycomb structure by closely adhering the outer wall material impregnated with a fibrous material with a thermosetting resin from both sides of the aggregate, and applying heat to the joint surface of the member having the joint surface portion. A step of applying a curable resin, bringing the bonding surface coated with the thermosetting resin into close contact with the outer wall of the honeycomb structure, and setting the member in a mold, and injecting a gas into each of the honeycomb cells. Then, while expanding each of the honeycomb cells to shape the honeycomb cells, the cell walls are brought into pressure contact with each other, and at the same time, the joint surface of the members housed in the mold is brought into pressure contact with the outer wall of the aggregate of the honeycomb cells. And heating the members and the honeycomb structure housed in a mold to heat and cure the respective thermosetting resins, and the bonding surface of the members to the outer wall of the honeycomb cell assembly And a step of bonding and fixing to the. Further, in the step of forming the honeycomb structure, in order to prevent corrugation of the outer wall material in the atypical cell portion formed inside the outer wall material, increasing the bonding area between the outer wall prepreg and the inner honeycomb cell. It is preferable to insert a reinforcing material for the purpose of, and the reinforcing material is preferably a rod-shaped material. Further, it is preferable to have a step of filling each hollow portion of the honeycomb cell column with a filler, and the filler is
It is preferably steel, glass, foaming urethane, or non-foaming urethane.

The honeycomb structure connected body of the present invention is formed by connecting honeycomb structures to each other through a flange member fixed to the honeycomb structure, and further, a honeycomb structure fixed to the flange member. A reinforcing plate is applied to the opposite side, and the flange member is fastened together with bolts and nuts.

[0016]

The honeycomb structure of the present invention is a honeycomb structure in which a plurality of honeycomb cells are arranged and heat-cured by using a cell wall material made of a prepreg obtained by impregnating a fibrous material with a thermosetting resin. The inside of the cell is filled with a filler such as steel, glass, foaming urethane, or non-foaming urethane to form a solid structure, and the atypical cell portion formed inside the outer wall prepreg is filled with a reinforcing material. Is something
The prepreg is used for the cell wall material and the outer wall material, which are the main components of the prepreg, to be heat-cured, and the inside of the cell is filled with a filler to form a solid structure. Since it is filled with a reinforcing material for the purpose of increasing the adhesive area, it has an extremely strong structure, is lightweight, and has corrosion resistance. Since the reinforcing material filled in the non-steady portion can prevent the outer wall prepreg from waviness, it is possible to prevent defective bonding between the outer wall prepreg and the internal honeycomb cells.

The honeycomb structure of the present invention is a honeycomb structure in which a plurality of honeycomb cells are arranged and heat-cured by using a cell wall material made of a prepreg obtained by impregnating a fibrous material with a thermosetting resin. Since the filling material is packed into the inside of the cell to form a solid structure, and the fitting of the fastening metal fitting for the purpose of coupling with other members is integrally provided, the honeycomb cell is formed by the filling material inside the cell. Fastening fittings to other members can be firmly provided on the structure. If the fastening fitting with another member is a pipe-shaped embedded nut having an internal thread engraved on the inner surface, the other member can be easily fastened with this nut and a bolt.

The honeycomb structure of the present invention is a honeycomb structure obtained by arranging a plurality of honeycomb cells using a cell wall material made of a prepreg in which a fibrous material is impregnated with a thermosetting resin, and heat-curing the honeycomb cells. Since the filling material is packed inside the cell to form a solid structure, the through hole is formed and the fastening jig is attached, the fastening jig is attached to the honeycomb structure by the filling material inside the cell. Can be firmly attached. Further, by fitting the pipe-shaped reinforcing material into the through-hole, the fastening jig can be firmly attached in one layer.

The honeycomb structure of the present invention is a honeycomb structure in which a plurality of honeycomb cells are arranged and heat-cured by using a cell wall material made of a prepreg obtained by impregnating a fibrous material with a thermosetting resin. Since a filling material is packed into the inside of the cell to form a solid structure, and a fastener for the purpose of coupling with other members is physically bonded and fixed to the outer surface of the outer wall prepreg during heat generation. It has an extremely strong structure, is lightweight, and has corrosion resistance.

The honeycomb structure of the present invention is a honeycomb structure in which a plurality of honeycomb cells are arranged and heat-cured by using a cell wall material made of a prepreg obtained by impregnating a fibrous material with a thermosetting resin. The inside of the cell is filled with a filling material to form a solid structure, and a reference member, which serves as a reference surface when processing the honeycomb structure, is physically bonded and fixed to the outer surface of the outer wall prepreg during heat generation. Therefore, the step of processing the honeycomb structure into a curved surface or the like can be advantageously performed.

Since the honeycomb structure of the present invention has an extremely strong structure, it is possible to form a large structure by connecting a large number of these structures via a flange member. In order to strengthen the connection between these structures, a reinforcing plate may be applied to the outer wall opposite to the outer wall to which the flange member is fixed, and the flange member may be fastened with bolts and nuts.

According to the method of the present invention, the cell walls of a plurality of honeycomb cell columns, in which a fibrous material is impregnated with a thermosetting resin, are closely arranged to each other to form an aggregate of honeycomb cells. In the aggregate, a step of forming a honeycomb structure by closely adhering the outer wall material in which the fiber material is impregnated with the thermosetting resin from both sides of the aggregate, and the thermosetting resin on the adhesive surface of the member having the adhesive surface portion. Coating, the adhesive surface coated with the thermosetting resin is brought into close contact with the outer wall of the honeycomb structure, a step of setting the member in a mold, and a gas is pressed into each of the honeycomb cells, A step of shaping each of the honeycomb cells by expanding each of the honeycomb cells, bringing the cell walls into pressure contact, and at the same time, bringing the joint surface of the member housed in the mold into pressure contact with the outer wall of the aggregate of the honeycomb cells, Stored in formwork A step of heating the member and the honeycomb structure to heat and cure each of the thermosetting resins, and physically bonding and adhering the bonding surface of the member to the outer wall surface of the honeycomb cell assembly; So that
The respective thermosetting resins are heat-cured at the same time, and a honeycomb structure having a member fixed to the outer wall can be manufactured extremely easily, strongly and at low cost.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIG. 1, a honeycomb cell structure according to an embodiment of the present invention has a plurality of cell wall materials 1a made of prepreg obtained by impregnating a fibrous material with a thermosetting resin. The honeycomb cells 1 are arranged and heat-cured, and the outer wall prepreg 3 made of prepreg is heat-cured to fill the inside of the honeycomb cell 1 with the filling material 5 to form a solid structure. The formed unsteady cell portion 4 is filled with a reinforcing material 6 for the purpose of increasing the bonding area between the outer wall prepreg and the inner honeycomb cells. In FIG. 1, 2 is an aggregate of honeycomb cells, and 7 is a honeycomb cell structure.
As the filler 5, steel, glass, foaming urethane, non-foaming urethane, etc. are suitable. Further, as the reinforcing material 6, a rod-shaped material such as iron or aluminum or a pipe is suitable. Since the reinforcing material 6 can prevent the outer wall prepreg 3 from being corrugated, it is possible to prevent defective bonding between the outer wall prepreg 3 and the honeycomb cells. Since this honeycomb cell structure 7 is configured as described above, it is extremely strong, lightweight, and has corrosion resistance.

Next, in the honeycomb cell structure according to the embodiment of the present invention, as shown in FIG. 2, a plurality of cell walls 1a made of prepreg in which a fibrous material is impregnated with a thermosetting resin are used. The honeycomb cells 1 are arranged and heat-cured, and the filling material 5 is packed into the inside of the honeycomb cells 1 to form a solid structure, and a female screw is attached to the inner surface as a fitting of a fastener for the purpose of coupling with other members. The embedded nut 8 in the shape of a pipe in which is carved is provided as a body. Nut 8
A locking claw 8a is provided on the outer peripheral surface of the so as to prevent the nut 8 from coming off. As the filler, steel, glass, foaming urethane, non-foaming urethane and the like are suitable as described above. In addition, 3 is an outer wall prepreg and 6 is a reinforcing material. FIG. 2 shows a state in which the flange member 10 is fastened by the nut 8 and the bolt 9 as a fastening fitting with another member.
In this honeycomb cell structure 11, the attachment 5 of the fastener for the purpose of coupling with other members can be firmly provided to the honeycomb cell structure by the filler 5 inside the cells.

Next, in the honeycomb structure according to the embodiment of the present invention, as shown in FIG. 3, a plurality of honeycombs are utilized by using the cell wall 1a made of a prepreg in which a fibrous material is impregnated with a thermosetting resin. The cells 1 are arranged and heat-cured, and a filling material 5 such as steel, glass, foaming urethane, or non-foaming urethane is packed into the inside of the honeycomb cell 1 to form a solid structure, and then a through hole 12 is formed. Bolt 1 as a fastening jig
3, the nut 14 is attached. A pipe 15 is preferably fitted to the through hole 12 for reinforcement.
Reference numeral 10 is a flange material fastened with bolts 13 and nuts 14. In this honeycomb cell structure 16, the fastening jig can be firmly attached to the honeycomb cell structure by the filling material 5 inside the cells. Further, by fitting the pipe 15 into the through hole 12, the fastening jig can be firmly attached by one layer.

Next, in the honeycomb structure according to the embodiment of the present invention, as shown in FIG. 4, a plurality of honeycombs are formed by using the cell walls 1a made of a prepreg in which a fibrous material is impregnated with a thermosetting resin. The cells 1 are arranged and heat-cured, and the filling material 5 is packed into the honeycomb cells 1 to form a solid structure, and the outer wall surface of the outer wall prepreg 3 is heated with the fastening metal fittings 17 for bonding with other members. When it is formed, it is physically bonded and fixed. The fastener 17 has a joint surface portion 18,
It is composed of a joint surface 18a and a flange portion 17a (see FIG. 5). In addition, it is preferable to fill the unsteady cell portion 4 formed inside the outer wall prepreg 3 with a reinforcing material 6 for the purpose of increasing the bonding area between the outer wall prepreg and the inner honeycomb cells. Since the reinforcing material 6 filled in the unsteady part can prevent the outer wall prepreg 3 from waving,
It is possible to prevent a defective joint between the outer wall prepreg 3 and the honeycomb cell. In addition, it is possible to prevent a defective joint between the outer wall prepreg 3 and the joint surface of the fastener 17. As the reinforcing material 6, a rod-shaped material such as iron or aluminum or a pipe is suitable. The honeycomb structure 19 has an extremely strong structure, can be advantageously connected to other members, is lightweight, and has corrosion resistance.

The fastener 17 fixed to the outer wall can be used not only as a flange for connection, but also as a reference member to be a reference surface when processing the honeycomb cell columnar structure. That is, a member is bonded to an arbitrary place of the honeycomb cell pillar structure, and the structure of the honeycomb cell pillar is processed, for example, with the upper and lower surfaces of the bonded member as horizontal reference planes and the left and right surfaces as vertical reference planes. Can be dimensioned for.

In the above figures, the honeycomb cell 1
Although the example of three layers is shown, the present invention is not limited to this, and any number of layers may be stacked.

As the cell wall material 1a and the outer wall material of the honeycomb cell 1, so-called prepreg obtained by impregnating a fibrous material with a thermosetting resin is used. A carbon fiber material, a glass fiber material, or the like is used as the fiber material, and for example, a woven fabric knitted in the orthogonal direction or the oblique 45 degree direction is formed. By forming a honeycomb structure using such a woven fabric, it is possible to secure tensile strength and bending rigidity in each direction of the honeycomb structure. Further, unsaturated polyester, epoxy, or the like is used as the thermosetting resin to impregnate the woven fabric of the fiber material.

Next, the connected body of the honeycomb cell columnar structures of the present invention, in which the honeycomb cell columnar structures having the flange member on the outer wall thereof are joined, of the present invention will be described. Figure 5
FIG. 3 is a perspective view of an example of a connected body 20 of a honeycomb structure of the present invention. In FIG. 5, the honeycomb structures 19 having the fastening members 17 fixed to the outer wall prepreg 3 are connected to each other by the bolts and nuts 21 via the fastening members 17.
This figure shows the case where two honeycomb structures 19 are connected, but by connecting many honeycomb structures 20, a longer connected body can be formed, and a large structure is formed. It becomes possible. Since the connected body 20 of the honeycomb structure 19 has high strength, light weight, and corrosion resistance, it has an extremely wide range of applications.

In FIG. 6, a reinforcing plate 22 is further provided on the outer wall 3a on the opposite side of the outer wall prepreg 3 to which the fastener 17 is fixed.
FIG. 7 is a side view of a honeycomb structure connected body 24 which is fastened with a fastening metal fitting 17 together with bolts and nuts 23. The connecting body 24 has a characteristic that it is strong against bending, twisting, shearing stress, and the like.

Unlike the conventional honeycomb structure, the honeycomb structure of the present invention and the connected body thereof can be made long and have high strength, so that it can be used for building columns, beams, girders, outer wall materials, etc. It can be used as a lightweight structural material. It can also be used for large structures such as bridges and tunnel segments. Further, it can be used as a structural material for products requiring various shapes such as a wind turbine propeller and an aircraft wing.

Next, a honeycomb structure of the present invention, in which a plurality of honeycomb cells are arranged and heated and cured by utilizing a cell wall material made of a prepreg in which a fibrous material is impregnated with a thermosetting resin, A method for manufacturing a honeycomb structure, which is characterized in that a filling material is packed inside cells to form a solid structure, and an atypical cell portion formed inside the outer wall prepreg is filled with a reinforcing material, will be described. First, in each internal space of the honeycomb cell 1, as shown in FIG.
The tubular air bag 40 is inserted. The air bag 40 is made slightly longer than the cell wall 1a so that air can be easily pressed into the air bag 40, and both ends of the air bag 40 have the honeycomb cell 1a.
Put it out from both ends. The air bag 40 may be inserted in the process of sequentially stacking the cell wall materials 1a and closely contacting each other, or may be inserted after the cell wall materials are assembled.

Next, in this state, air having a temperature at which the thermosetting resin can be heat-cured is pressed into the air bags 40 inserted into the respective honeycomb cells 1 to expand the air bags 40. The honeycomb cells 1 are shaped, the cell wall materials 1a are brought into pressure contact with each other, and the cell wall materials 1a and the outer wall prepreg 3 are brought into pressure contact with each other to heat and cure the respective thermosetting resins.

Next, as shown in FIG. 1, a filling material 5 is filled inside the cells of the honeycomb structure thus heat-cured, and an unsteady cell portion 4 formed inside the outer wall prepreg 3 is formed. Then, the reinforcing material 6 is filled. By the above process,
The honeycomb cell structure 7 can be manufactured. In addition,
To press the air into the air bladder 40, the device shown in FIG. 8 described later may be used. Further, by adding an air heating device to the air circulation device of FIG. 8, it is possible to circulate air at a temperature at which the thermosetting resin is heated and cured.

Next, a honeycomb structure in which a plurality of honeycomb cells are arranged and heat cured by using a cell wall material made of a prepreg in which a fibrous material is impregnated with a thermosetting resin,
The honeycomb structure is characterized in that a filling material is packed inside the cell to form a solid structure, and a fixture for a fastening metal fitting with another member is integrally provided, and a fibrous material made of a thermosetting resin. A honeycomb structure in which a plurality of honeycomb cells are arranged by using a cell wall material made of impregnated prepreg and cured by heating, and a filling material is packed inside the cells to form a solid structure, and a through hole is formed. In order to manufacture a honeycomb structure of a honeycomb structure characterized by forming and forming a fastening jig, inside the cells of the honeycomb structure heat-cured thermosetting resin by the same method as described above. ,
In the same manner, the filler may be filled, the former may be provided with an attachment of a fastening metal fitting with another member in the honeycomb structure, and the latter may be formed with a through hole to attach the fastening jig.

Next, a honeycomb structure in which a plurality of honeycomb cells are arranged and heat-cured by utilizing a cell wall material made of a prepreg obtained by impregnating the fiber material of the present invention with a thermosetting resin, A honeycomb structure of a honeycomb structure in which a filler is packed inside to form a solid structure, and a fastener for the purpose of bonding with other members is physically bonded and fixed to the outer surface of the outer wall prepreg during heat generation. A method for manufacturing the body will be described. First, as shown in FIG. 7, a tubular air bag 40 is inserted into each internal space of the honeycomb cell 1. The air bag 40 is made slightly longer than the cell wall 1a so that air can be easily press-fitted into the air bag 40, and both ends of the air bag 40 extend from both ends of the honeycomb cell 1.

Next, as shown in FIG. 13, the outer wall prepreg 3
A thermosetting resin is applied to the joining surface 18a with the outer wall prepreg 3 in the fastening metal fitting 17 having the joining attachment surface portion 18 with, and the joining surface 18a coated with the thermosetting resin is closely adhered to the outer wall prepreg 3 Store 17 in the formwork. The air bag 40 is not shown in FIG.

Here, the formwork will be described. The formwork is
It consists of a lower formwork and an upper formwork. FIG. 8 is a perspective view showing an example of the lower formwork. In FIG. 8, the lower mold 30 has a base 3
An iron plate pedestal 32 is provided on the upper surface of 1. Pedestal 32
Is a recess 33 for setting the joint surface portion 18 of the fastener 17.
Is further provided, and the flange portion 1 of the fastener 17 is further provided.
A groove 34 for accommodating 7a is provided. Also, base 3
1, a plurality of bolts 35 are attached to the left and right step portions 31a. The upper mold 36 has a flat iron plate 37 attached to the surface facing the lower mold 30, and has bolt holes through which bolts 35 pass on both sides (see FIG. 9).

FIG. 9 shows that between the lower mold 30 and the upper mold 36,
The state which set the honeycomb cell structure 38 and the fastener 17 is shown. 10 is a sectional view taken along line AA of FIG. As shown in FIGS. 9 and 10, the joining surface 18a of the fastening member 17 coated with the thermosetting resin is brought into close contact with the outer wall prepreg 3 of the honeycomb structure 38, and the fastening member 17 is fixed to the lower mold 30.
And the upper frame 36. At that time, the fastener 17
The joint surface portion 18 of is fitted into the recess 33 of the pedestal 32,
The flange portion 17 a is housed in the groove 34 of the base 32. The depth of the recess 33 is set so that the joint surface portion 18 is slightly above the upper surface of the pedestal 32 (see FIG. 1).
0). Then, the upper frame 36 is attached to the honeycomb cell structure 3
It is placed from above the bolt 8 through the bolt 35 and fixed by the nut 39.

Next, in this state, the air bag 40 inserted into each honeycomb cell 1 is inflated to shape the honeycomb cell 1, and the cell wall materials 1a are pressed against each other, and at the same time, the lower mold 30 The joint surface 18a of the fastener 17 set between the upper mold 36 and the upper mold 36 is brought into pressure contact with the outer wall prepreg 3 of the honeycomb structure 38.

Next, a method of press-fitting air into the air bag 40 will be described. As shown in FIG. 11, air circulation paths 41a and 41b are connected to both ends of the air bladder 40, respectively. An air circulation device 42 is provided between the air circulation paths 41a and 41b. The air circulation device 42 circulates the air in the air circulation passage 41a to the air circulation passage 41b. Also,
The internal pressures of the air circulation paths 41a and 41b and the air bladder 40 are set to 5
It is possible to set it in the range of about 0 to 100 MPa.
In the above configuration, if the air circulation device 42 is operated, it is possible to circulate the inside of the air circulation paths 41a and 41b and the air bag 40 as shown by arrows D, E, F, and G.

Note that it is not always necessary to circulate the air as described above, and one end of the air bag 40 should be covered with a sealing plug,
Air may be pressed in from the other end.

As described above, when air is pressed into the air bag 40, both ends of the air bag 40 are sealed. First, air bag 4
The zero sealing structure will be described. As shown in FIG.
At both ends of the air bag 40, a sealing plug 43 having a through hole in the center is fitted about 20 mm deep from the end of the air bag 40, and the sealing plug 43 is fixed with an adhesive 44. Has been done. In addition, the air injection port 4 is provided in the through hole of the sealing plug 43.
The check valve 46 provided with 5 is inserted. The check valve 46 is
Air is circulated only in the directions shown by arrows E and F in FIG. The material of the air inlet 45 is a resin such as polyethylene.

Next, a method of sealing the air bag 40 will be described. When the internal pressure of the air bag 40 reaches a predetermined pressure, the air inlet 45 is sandwiched by a heating body and the air inlet 45 is crushed. The air bag 40 can be sealed by the above process.

When the shaping of the honeycomb cell 1 and the pressure contact between the fastening member 17 and the outer wall prepreg 3 are completed, the end portion of the air bag 40 is sealed and the inside thereof is kept filled with air. The internal pressure of the sealed air bag 40 is 50 to 100.
It is preferably about MPa.

Next, with the inner pressure of the air bladder 40 maintained, the lower mold 30 and the upper mold 36 are placed in a heating furnace (not shown) and heated to impregnate the cell wall material 1a and the outer wall prepreg 3 with heat. At the same time as hardening the curable resin, the fastener 1
The joint surface 18a of No. 7 is fixed to the outer wall prepreg 3. An electric furnace is suitable as the heating furnace, and the heating may be performed at about 130 ° C. and 1 atm.

Next, the thermosetting resin is cured, and the honeycomb cell structure 3 in which the fastener 17 is fixed to the outer wall material prepreg.
8 is taken out by removing the nut 39 from the lower mold 30 and the upper mold 36, the air in each air bag 40 is removed, and the air bag 40 is pulled out. As described above, the honeycomb structure 38 shown in FIG. 13 can be manufactured. And this honeycomb structure 3
By filling the hollow part of the honeycomb cell 1 of No. 8 with a filler, the honeycomb structure of Claim 7 can be manufactured. In this manufacturing process, since the three thermosetting resins are cured by heating once, the manufacturing is simple and the manufacturing cost is low.

[0049]

As described above, since the honeycomb structure of the present invention and the connected body thereof have high strength unlike the conventional honeycomb structure, they are columns for construction, beams, girders, outer wall materials, etc. It can be used as a lightweight structural material. Also bridges,
It can be used for large structures such as tunnel segments. Further, it can be used as a structural material for products requiring various shapes such as a wind turbine propeller and an aircraft wing. Further, in the honeycomb structure of the present invention, by connecting the honeycomb structures to each other, a long connected body can be formed, and a large structure can be formed. Further, the member fixed to the outer wall can be used as a reference surface when processing the honeycomb structure. INDUSTRIAL APPLICABILITY Since the honeycomb structure connected body of the present invention has high strength, light weight and corrosion resistance, it has an extremely wide range of applications. Moreover, the manufacturing method of the present invention can easily manufacture the honeycomb structure of the present invention at low cost.

[Brief description of drawings]

FIG. 1 is a perspective view of a honeycomb structure according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a honeycomb structure according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view of the honeycomb structure according to the embodiment of the present invention.

FIG. 4 is a perspective view of the honeycomb structure according to the embodiment of the present invention.

FIG. 5 is a perspective view of a connected body of a honeycomb structure according to the embodiment of the present invention.

FIG. 6 is a side view of the connected body of the honeycomb structure according to the embodiment of the present invention.

FIG. 7 is a cross-sectional view showing a state in which an air bag is inserted in the honeycomb cells of the honeycomb structure according to the embodiment of the present invention.

FIG. 8 is a perspective view of a lower formwork according to the embodiment of the present invention.

FIG. 9 is a front view showing a state in which the honeycomb structure and the fastener are set between the lower mold and the upper mold according to the embodiment of the present invention.

10 is a sectional view taken along line AA of FIG.

FIG. 11 is an explanatory diagram of an air circulating device for the air bladder according to the embodiment of the present invention.

FIG. 12 is a cross-sectional view showing a sealing structure of an air bag.

FIG. 13 is a perspective view of the honeycomb structure according to the embodiment of the present invention.

FIG. 14 is an explanatory view showing the outline of the method for manufacturing a honeycomb structure according to the conventional technique.

[Explanation of symbols]

1 ... Honeycomb cells, 1a ... Cell wall material, 2 ...
Honeycomb cell aggregate, 3 ......... Outer wall prepreg, 4 ...
… Atypical cell part, 5 ………… Filler, 6 ………… Reinforcement, 7
... Honeycomb structure, 8 ... Nut, 8a ... ... Locking claws, 9 ... ... Bolts, 10 ... ... Flange material, 11 ...
...... Honeycomb structure, 12 ...... through holes, 13 ......, bolts, 14 ......, nuts, 15 ......, pipes, 16 ......
... Honeycomb structure, 17 ......... fastening metal fittings, 18 ......... bonding surface portion, 18a ......... bonding surface, 19 ......... honeycomb structure, 20 ......... connecting body, 21 ......... bolts and nuts, 2
2 ... Reinforcement plates P, 23 ... Bolts and nuts 2
4 ......... Connected body, 30 ......... Lower formwork, 31 ...
32 ... Pedestal, 33 ... Recess, 34 ... Groove, 35
……… Bolts, 36 ……… Upper form, 37 ……… Steel plate, 3
8 ... Honeycomb structure, 39 ... Nut, 40 ...
... air bag, 41a ... ... air circulation path, 41b ... ... air circulation path, 42 ... ... air circulation device, 43 ... ... sealing plug,
44 ……… Adhesive, 45 ……… Air inlet, 46 ………
Check valve

Continued front page    F-term (reference) 4F100 AB03A AB03H AG00A AG00H                       AK01 AK01A AK51A AK51H                       AR00A BA01 BA03 BA06                       BA10B BA10C DB00A DB05                       DC07A DG01 DG01A DH01A                       DH02B DH02C DJ04A DJ04H                       EJ082 EJ422 EJ461 EJ822                       GB07 GB31 JB02 JB13 JB13A                       JK01 JK01A JL02 JL03

Claims (19)

[Claims] 1. A honeycomb structure in which a plurality of honeycomb cells are arranged and heat-cured by using a cell wall material made of a prepreg in which a fibrous material is impregnated with a thermosetting resin, and a filling material is provided inside the cells. And a non-standard cell portion formed inside the outer wall prepreg with a reinforcing material. 2. The honeycomb structure according to claim 1, wherein the reinforcing material is a rod-shaped material. 3. A honeycomb structure in which a plurality of honeycomb cells are arranged and heat-cured by using a cell wall material made of a prepreg in which a fibrous material is impregnated with a thermosetting resin, and a filling material is provided inside the cells. To form a solid structure, and a fitting for a fastening metal fitting for the purpose of coupling with another member is provided integrally with the honeycomb structure. 4. The honeycomb structure according to claim 3, wherein the fitting of the fastener with the other member is a pipe-shaped embedded nut having an internal thread engraved therein. 5. A honeycomb structure in which a plurality of honeycomb cells are arranged and heat-cured by using a cell wall material made of a prepreg in which a fibrous material is impregnated with a thermosetting resin, and a filling material is provided inside the cells. A honeycomb structure having a solid structure in which the through holes are formed and a fastening jig is attached. 6. The honeycomb structure according to claim 5, wherein a pipe-shaped reinforcing material is fitted in the through hole. 7. A honeycomb structure in which a plurality of honeycomb cells are arranged and heat-cured by using a cell wall material made of a prepreg in which a fibrous material is impregnated with a thermosetting resin, and a filling material is provided inside the cells. A honeycomb structure in which a fastening metal fitting for the purpose of bonding with other members is bonded and fixed to the outer surface of the outer wall prepreg in a physical manner while being heated. 8. The atypical cell portion formed inside the outer wall prepreg is filled with a reinforcing material for the purpose of increasing the bonding area between the outer wall prepreg and the inner honeycomb cells. 7. The honeycomb structure according to 7. 9. The honeycomb structure according to claim 8, wherein the reinforcing material is a rod-shaped material. 10. The honeycomb structure according to claim 7, wherein the fastener includes a joint surface portion which is joined and fixed to the outer surface of the outer wall prepreg, and a flange portion. 11. A honeycomb cell structure in which a plurality of honeycomb cells are arranged and heat-cured by using a cell wall material made of a prepreg in which a fibrous material is impregnated with a thermosetting resin, and the inside of the cells is filled. A honeycomb structure in which materials are packed to form a solid structure, and a reference member, which serves as a reference surface when processing the honeycomb cell structure, is physically bonded and fixed to the outer surface of the outer wall prepreg during heating. 12. The filler is any one of steel, glass, foaming urethane, and non-foaming urethane, or two or more thereof.
1. The honeycomb structure according to any one of 1. 13. A fibrous material impregnated with a thermosetting resin,
The cell walls of a plurality of honeycomb cells are arranged in close contact with each other to form an aggregate of honeycomb cells, and the aggregate of honeycomb cells includes an outer wall material obtained by impregnating a thermosetting resin in a fibrous material on both sides of the aggregate. A step of forming a honeycomb structure by closely adhering to each other, and applying a thermosetting resin to the joining surface of the member having a joining surface portion, and adhering the joining surface coated with the thermosetting resin to the outer wall of the honeycomb structure. The step of setting the member in a mold, a gas is pressed into each of the honeycomb cells, the honeycomb cells are expanded by shaping each of the honeycomb cells, and the cell walls are pressed against each other. At the same time, a step of pressing the bonding surface of the member housed in the mold to the outer wall of the aggregate of the honeycomb cells, heating the member housed in the mold and the honeycomb structure, and thermosetting each of them. Together it is cured by heating the fat, the method for manufacturing a honeycomb structured body characterized by having a step of the outer wall over the body joined fixation of the honeycomb cell assembly bonding surface of the member. 14. In the step of constructing the honeycomb structure, a reinforcing material for increasing the bonding area between the outer wall prepreg and the inner honeycomb cell is provided in the non-standard cell portion formed inside the outer wall material. The method for manufacturing a honeycomb structure according to claim 13, wherein the honeycomb structure is inserted. 15. The method for manufacturing a honeycomb structure according to claim 14, wherein the reinforcing material is a rod-shaped material. 16. The method for manufacturing a honeycomb structure according to claim 13, further comprising the step of filling a filling material into each hollow portion of the honeycomb cell. 17. The method for manufacturing a honeycomb structure according to claim 16, wherein the filler is one or more of steel, glass, foaming urethane, and non-foaming urethane. 18. A honeycomb structure connected body, wherein the honeycomb structures are connected to each other via a flange member fixed to the honeycomb structure. 19. The connection of honeycomb structures according to claim 18, further comprising a reinforcing plate applied to the opposite side of the honeycomb structure to which the flange member is fixed and fastened together with the flange member by bolts and nuts. body.